Pebble coal discharging system of boiler coal mill

The utility model discloses a pebble coal discharging system of a boiler coal mill. Control and linkage of a pebble coal discharging device in the prior art are completed through hard wiring of a contactor set, the failure rate is high, the spare part consumption is large, and the cost is high. The device comprises a water film dust remover (1) and a pebble coal bunker (3), the upper portion of the water film dust remover is connected with a fan (2) through a pipeline, the lower portion of the water film dust remover is connected with a sewage pool (8) through a pipeline, a bucket elevator (5) is installed above the pebble coal bunker, a belt conveyor (4) is installed on the outer side of the bucket elevator, and the bottom of the bucket elevator is installed on a pebble coal channel (9). A scraper (12) is arranged in the pebble coal channel, a group of pebble coal buckets (11) are arranged above the belt conveyor, the upper parts of the pebble coal buckets are connected with a coal mill (10) through an upper